One of the individuals behind the Ice Bucket Challenge to support Lou Gehrig?s disease research has died in a diving accident.

Corey Griffin, 27, helped popularize the worldwide trend in which people either pledge $100 to ALS research or record themselves getting drenched by frigid water, then post the stunt online and challenge others to do the same.

Griffin jumped into the water from a building on a wharf that was a popular diving spot in Nantucket Island, Massachusetts.